# while True:
#     if id([]) != id([]):
#         break

class A:

    # def __init__(self):
    #     print("A __init__ %d" % id(self))
    #
    # def __del__(self):
    #     print("A __del__ %d" % id(self))

    pass

# while True:
#     if id(A()) != id(A()):
#         print("find address different")
#         break

# for i in range(100):
#     print(id(A()), id(A()))


print(id(A()), id(A())) # 1986939249832 1986939249832
print(id([]), id([])) # 2629379226888 2629379226888